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A072201 as a simple table

n a(n)
1 15
2 61
3 245
4 981
5 3925
6 15701
7 62805
8 251221
9 1004885
10 4019541
11 16078165
12 64312661
13 257250645
14 1029002581
15 4116010325
16 16464041301
17 65856165205
18 263424660821
19 1053698643285
20 4214794573141
21 16859178292565

[15,61,245,981,3925,15701,62805,251221,1004885,
 4019541,16078165,64312661,257250645,1029002581,
 4116010325,16464041301,65856165205,263424660821,
 1053698643285,4214794573141,16859178292565]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)